己组煤层采空区自燃隐患预测预报技术

Spontaneous Combustion Hazard Forecasting Technology in the Ⅵ Group of Coal Seam Goaf

基于光纤传感技术,在己组煤层采空区内布置了4条测温光缆对采空区内的温度进行了实时连续性监测,对工作面推进过程中存在的自燃隐患区域提出了预警提示,确定了采空区自燃"三带"的分布范围。根据预警提示,在工作面回风巷采取了灌浆防灭火技术措施,有效消除了己组煤回采过程中的自燃隐患,保证了工作面的安全生产。

It set out four temperature measuring cables in goaf of VI group coal seam based on the optical fiber sensing technology,and realized temperature real-time continuous monitoring. It proposed early warning to the zone where has spontaneous combustion danger on working face, and determined the distribution of spontaneous combustion ＂ three zone＂ ,it took the grouting technology in airway of work- ing face according to the early warning, and effectively eliminated the spontaneous combustion danger in coal mining process, ensured the safety production of working face.